目前,江西省 * * 票中心的各个网点与中心机房组网大多采用()接入方式。
A.2M数字电路
B.ATM/FR电路
C.LAN电路
D.VPDN电路
参考答案:D
有人认为:指导思想的一元化不符合文化多样性发展要求。请你对这一观点进行评析。
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如图所示,电源电压不变,R1=40Ω,R2=20Ω,I1=0.2A.
求:
(1) R2两端电压;
(2)流过R2的电流;
(3)干路电流;
(4) 100秒内电流通过R1的电荷量Q1.